- Center for Humans and Machines (Director: Iyad Rahwan), Max Planck Institute for Human Development, Germany
- Seoul Institute of Technology, Korea
- Visiting Researcher, Aug 2020 - Dec 2020.
- Asia Pacific Center for Theoretical Physics, Korea
- Kellogg School of Management & Northwestern Institute on Complex Systems, Northwestern University, USA
- Visiting Predoctoral Fellow, Oct 2017 - Aug 2018. (Supervisor: Hyejin Youn)